JP2006068034A - Vacuum cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent the easy falling of a suction port body without impairing the usability of the suction port body such as a clearance nozzle in a vacuum cleaner. <P>SOLUTION: Two engagement arms 81 and 81 formed in the clearance nozzle body 80 (the suction port body) are formed along the axial direction of the tube part 80a of the clearance nozzle 80 extending in parallel to each other, the two engagement arms 81 and 81 are formed with projections 86 and 86 projecting in the mutually opposed directions of the both engagement arms 81 and 81 respectively, while a support leg 54 of a hand operation part 50 (a part to be connected) is formed with two guide grooves 57 and 57 extending along the axial direction of the tube part 52 of the hand operation part 50 and engaged with the projections 86 and 86 of the respective engagement arms 81 and 81 respectively. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a vacuum cleaner, and in particular, to an improvement in a support structure for a suction port body.

  Conventional vacuum cleaners for home use have a gap nozzle as a suction port for pinpoint insertion into a narrow area such as a gap in addition to a normal floor suction port. ing.

  The vacuum cleaner includes a vacuum cleaner main body having a dust collection unit and an electric blower inside, a flexible hose communicating with the dust collection unit, a hand operation unit connected to the other end of the hose, and a hand It has an extension pipe fitted and connected to the operation section, and a floor suction port connected to the other end of the extension pipe, and the gap nozzle is supported and locked by the hand operation section and replaced with the extension pipe. Are used by being fitted and connected to the hand operating part (Patent Document 1).

  For example, as shown in FIG. 7, the gap nozzle 180 is supported on the outer peripheral surface of the tube portion 152 of the hand operation unit 150 so as to be rotatable and slidable. And what rotates and is fitted and connected with the hand operation part 150 as shown with a dashed-two dotted line is known. In FIG. 7, reference numeral 181 of the gap nozzle 180 is an engagement arm, reference numeral 151 of the hand operation unit 150 is a grip, reference numeral 154 is a support leg for supporting the engagement arm 181, and reference numeral 153 is a supported gap nozzle 180. It is a latching protrusion which latches the to-be-latched part 182 to the outer peripheral surface of the hand operation part 150.

  8 and 9 are a perspective view and a cross-sectional view of relevant parts for explaining details of the structure for supporting the gap nozzle 180. FIG.

  A pair of protrusions 155 and 155 projecting in the width direction are formed on the support leg 154 formed on the hand operation unit 150, while the pair of engagement arms 181 and 181 formed on the gap nozzle 180 are formed on the support leg 154. Are formed with elongated holes 183 and 183 extending in the axial direction of the gap nozzle 180, respectively. The pair of engagement arms 181 and 181 sandwich the support leg 154 from the width direction, and the protrusions 155 and 155 of the support leg 154 enter the elongated holes 183 and 183 of the engagement arms 181 and 181. It has become.

  Here, the width d1 (FIG. 9B) between the tips of the protrusions 155 and 155 is larger than the gap width d2 (FIG. 9C) between the opposing surfaces of the engagement arms 181 and 181. As long as the gap width between the two engaging arms 181 and 181 is not widened, that is, unless the engaging arms 181 and 181 are bent in the direction indicated by the thick arrows in FIG. 9C, the protrusions 155 and 155 are elongated holes 183. , 183 and the clearance nozzle 180 is supported by the support leg 154.

  At this time, the protrusions 155 and 155 are relatively slidable within the length range of the long holes 183 and 183, and the protrusions 155 and 155 are relatively rotatable in a state of being inserted into the long holes 183 and 183. Therefore, the gap nozzle 180 is supported so as to be slidable and rotatable with respect to the hand operation unit 150.

  By the way, it is preferable that the clearance nozzle 180 can be removed from the hand operation unit 150 as necessary. That is, the gap nozzle 180 is not only directly connected to the hand operating unit 150 but also used as an extension pipe if it is replaced with the suction port body 130 so that it can be connected to the tip of the extension pipe 140. It is possible to perform cleaning using the gap nozzle 180 even in a place where it does not reach otherwise, and convenience can be improved.

  Therefore, the illustrated gap nozzle 180 is also detachable from the hand operation unit 150. That is, d3 (> d1> d2) where the gap width between the opposing surfaces between the engagement arms 181 and 181 is wider than the width d1 between the tips of the protrusions 155 and 155 on one end side of the long holes 183 and 183. ), The engagement arms 181 and 181 are formed to be bent, whereby the gap nozzle 180 from the state in which the protrusions 155 and 155 are inserted into the long holes 183 and 183 (supported state). 9 is slid in the direction of the white arrow shown in FIG. 9C, both protrusions 155 and 155 are pulled out to one end side of the long holes 183 and 183, and the support force of the support leg 154 with respect to the gap nozzle 180 is lost. The gap nozzle 180 is detached from the hand operation unit 150.

  The clearance nozzle 180 is slidable in the direction of the white arrow only when the clearance nozzle 180 is in a posture substantially parallel to the tube portion 152 of the hand operation unit 150, and in other postures, Even if the gap nozzle 180 is slid, the pipe portion 180a of the gap nozzle 180 hits the outer peripheral surface of the pipe portion 152 of the hand operation portion 150 and cannot be slid.

  The clearance nozzle 180 is in a posture substantially parallel to the tube portion 152 of the hand operation unit 150, and the locked portion 182 of the clearance nozzle 180 is engaged with the locking protrusion 153 by the rotation of the clearance nozzle 180. The gap nozzle 180 is supported and locked to the hand operation unit 150 in the posture shown by the solid line in FIG.

As shown in FIG. 9C, the engagement arms 181 and 181 are connected by a connecting plate 184 formed with a notch 185 in the center in the sliding direction. Both the engagement arms 181 and 181 are prevented from excessively bending in the direction of the thick arrow, and the protrusion 155 from the elongated hole 183 that can be caused by this excessive bending is prevented (Patent Document 2, etc.).
Japanese Patent No. 3186017 Japanese Patent Application No. 2003-400491 (unpublished)

  By the way, the gap nozzle 180 is supported and locked to the hand operation unit 150 as shown by a solid line in FIG. 7 when not in use, but when the vacuum cleaner is used, that is, the grip 151 is gripped to suck the floor suction port. When the user slides 130 along the floor or the like, the user pays attention to the movement of the suction port body 130 instead of the hand, so the hand operating unit 150 is used as a wall, a shelf, or other installations. It may be inadvertently contacted.

  Then, the load received from the installation object or the like by the contact with respect to the gap nozzle 180 supported and locked by the hand operation section 150 is substantially parallel to the tube portion 152 of the hand operation section 150, that is, FIG. ), The engagement with the projections 155 and 155 of the hand operating unit 150 is released at one end of the long holes 183 and 183 of the gap nozzle 180. In some cases, it may easily fall off the hand operating unit 150, for example, by sliding in the longitudinal direction of the long holes 183 and 183.

  In such a case, there is a possibility that the counterpart with which the gap nozzle 180 collides is damaged, or that the gap nozzle 180 itself is also damaged.

  Moreover, even if it is not damaged, the user interrupts the cleaning operation, picks up the gap nozzle 180 that has fallen, and returns it to the hand operating unit 150, which wastes labor.

  The above-described problem is not limited to the case where the gap nozzle 180 is supported and locked to the hand operation unit 150, but other parts such as an extension pipe (extension pipe, hose, or handy type cleaner) It can occur in the same way when it is supported and locked to the machine main body.

  That is, for example, when the gap nozzle is supported and locked to the tip of the extension pipe (the end close to the connecting portion with the floor suction port), it is supported and locked to the hand operating portion. Although the user's focus is better than the case, it is supported at a position far away from the hand that is actually gripped by the hand (grip), so it is carefully extended so that the gap nozzle does not contact other installations It is difficult to control the movement of the end of the tube, and the efficiency of the cleaning work will deteriorate if careful control is attempted. Therefore, the user does not always carefully move the distal end side of the extension pipe, and may inadvertently bring the gap nozzle into contact with another installation object and cause the gap nozzle to drop off.

  The present invention has been made in view of the above circumstances, and provides a vacuum cleaner capable of preventing the suction port body from easily falling off without impairing the usability of the suction port body such as a gap nozzle. It is the purpose.

  The vacuum cleaner according to the present invention includes a support leg that protrudes from the outer peripheral surface of the connected portion to which the connecting pipe that sucks dust is connected, and an engagement that protrudes from the outer peripheral surface of the suction port connected to the connected portion. In the vacuum cleaner in which the arm engages with each other and the suction port body is supported so as to be slidable and rotatable with respect to the connected portion, the engagement arm includes two extending substantially parallel to each other. Each of the two engagement arms is formed with a protrusion protruding in the opposite direction of each of the two engagement arms, and each of the protrusions of each of the engagement arms is formed on the support leg. Two guide grooves to be engaged are formed, and a notch for attaching and detaching the protrusion to and from the guide groove is formed at a substantially center in the longitudinal direction of the guide groove in the side wall forming the guide groove. Features.

  Here, the suction port body includes a suction port body for floors in addition to a suction nozzle for replacement. In addition, extension pipes and floor suction ports are also applied as connection pipes, and connected parts include intermediate pipes such as so-called hand operation switches and hand operation parts with grips, and suction ports. In the case of an extension pipe provided between the intermediate pipe and a handy type vacuum cleaner, a vacuum cleaner main body is also applied.

  Further, since the two guide grooves are formed corresponding to the protrusions of the two engaging arms, and are formed in parallel substantially sharing the bottom, the bottom is removed and 2 The guide grooves of the book may be formed as a single long hole penetrating each other.

  According to the vacuum cleaner of the present invention, since the guide groove regulates the extraction of the protrusion over the entire length thereof, the protrusion does not come out of the guide groove, and therefore the gap nozzle can be easily detached from the connected portion. Can be prevented.

  By applying a load that elastically deforms both engagement arms so as to widen the interval between both engagement arms, each projection formed on both engagement arms can be pulled out from the guide groove, Thereby, a clearance nozzle can be attached or detached to a to-be-connected part.

  In particular, each projection can be easily attached and detached by passing the notch in the side wall forming the guide groove.

  In addition, since the protrusion can slide along the guide groove, the gap nozzle can be slid in the same manner as in the past with respect to the connected portion, and the two protrusions can be inserted with the protrusion protruding into the guide groove. The gap nozzle can be rotated with respect to the connected portion in the same manner as in the prior art. Therefore, the same usability as in the conventional case can be ensured.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS The best mode for carrying out the vacuum cleaner of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing a schematic configuration of a vacuum cleaner 10 according to an embodiment of the present invention. The illustrated vacuum cleaner 10 includes a dust collector 21 and an electric blower 22 inside. A power cord 23 that extends from the main body 20 and is connected to a commercial power source (not shown) to supply electric power to the electric blower 22; a flexible hose 60 that communicates with the dust collector 21; and the other end of the hose 60 A hand operating part 50 (connected part) connected to the hand operating part 50, an extension pipe 40 (connection pipe) fitted and connected to the hand operating part 50, and a floor suction port connected to the other end of the extension pipe 40 It is configured to include a body 30 and a gap nozzle 80 (suction port body) that is supported and locked to the hand operation unit 50, exchanged with the extension tube 40 and fitted to the hand operation unit 50.

  Here, the gap nozzle 80 is supported on the outer peripheral surface of the pipe portion 52 of the hand operation unit 50 so as to be rotatable and slidable as shown in FIG. 2 when the hand operation unit 50 is viewed obliquely from below. From the support locking state shown in FIG. 1 (a), it slides and rotates to shift to a use state in which it is fitted and connected to the extension tube 40 as shown in FIG. 1 (b). Transition to the stop state.

  In FIG. 2, reference numerals 81 and 81 of the gap nozzle 80 are engaging arms, reference numeral 82 is a locked portion, reference numeral 80a is a pipe portion, reference numeral 51 of the hand operating section 50 is a grip, and reference numeral 54 is an engaging arm. Reference numeral 53 denotes a support protrusion for supporting 81, and 53 denotes a locking projection for locking the locked portion 82 of the supported gap nozzle 80 to the outer peripheral surface of the hand operating portion 50.

  Here, the two engagement arms 81, 81 formed on the gap nozzle 80 are substantially parallel to each other along the axial direction of the tube portion 80a of the gap nozzle 80, as shown in FIG. The two engaging arms 81, 81 are formed with protrusions 86, 86 projecting in the opposite directions of the two engaging arms 81, 81, respectively.

  A semicircular cutout 87 is formed at the protrusion 86 of each engagement arm 81. Further, the base portions of the both engaging arms 81, 81 are connected to each other by a connecting plate 84.

  On the other hand, as shown in FIG. 3A, the support leg 54 extends along the axial direction of the pipe portion 52 of the hand operation portion 50, and the projections 86, 86 of the respective engagement arms 81, 81 respectively enter. Two guide grooves 57, 57 are formed.

  Further, notches 58 and 58 are formed in a part of the side walls constituting the guide grooves 57 and 57. As shown in FIG. 4A, the notches 58 and 58 are side walls far from the pipe portion 52 with respect to the guide grooves 57 and 57, respectively, and are substantially in the center with respect to the longitudinal direction of the guide groove 57. Is formed.

  Specifically, the thickness d4 of the support leg 54 is larger than the distance d9 between the opposing surfaces of the two engagement arms 81, 81 (see FIG. 4C), as shown in the sectional view of FIG. The gap d5 between the bottom surfaces of the guide grooves 57, 57 is formed to be narrower than the gap d8 between the tips of the protrusions 86, 86 that enter the guide grooves 57, 57.

  Further, the shortest distance d6 between the edges of the notches 58 and 58 is longer than the distance d5 between the bottom surfaces, but shorter than the thickness d4 of the support leg 54. That is, the height from the bottom surface of the guide groove 57 to the edge portion of the notch 58 (= (d6-d5) / 2> 0) is the height from the bottom surface of the guide groove 57 to the edge portion in the thickness direction of the support leg. (= (D4-d5) / 2) (the contour edge of the notch 58 is lower than the upper edge of the side wall of the guide groove 57).

  Then, the guide grooves 57 corresponding to the protrusions 86 of the engagement arms 81 and 81 so that the two engagement arms 81 and 81 of the clearance nozzle 80 sandwich the support leg 54 of the hand operation unit 50 in the width direction. 57, the support leg 54 of the hand operating unit 50 and the engagement arms 81, 81 of the gap nozzle 80 are engaged with each other, and the projections 86, 86 slide along the guide grooves 57, 57. As a result, the gap nozzle 80 is slidable with respect to the hand operating section 50, and the projections 86, 86 rotate around the axis connecting the projections 86, 86 with respect to the guide grooves 57, 57. Thus, the gap nozzle 80 is rotatable with respect to the hand operation unit 50.

  Next, regarding the operation of the vacuum cleaner 10 according to the present embodiment, in particular, the support locking operation between the gap nozzle 80 and the hand operation unit 50, FIG. 6 will be described below.

  First, FIG. 5A shows a state where the gap nozzle 80 is supported and locked. In this supported and locked state, the projections 86 and 86 of the engagement arms 81 and 81 are engaged with the guide grooves 57 and 57, and the gap nozzle 80 is supported by the hand operation unit 50.

  At this time, the projections 86 and 86 are located in the vicinity of one end of the guide grooves 57 and 57, and the locked portion 82 of the gap nozzle 80 is locked to the locking projection 53 on the outer peripheral surface of the hand operating portion 50, Accordingly, the gap nozzle 80 is locked to the hand operation unit 50. In FIG. 5A, the locking protrusion 53 merely locks the locked portion 82, but in actuality, the locking protrusion 53 is the inner surface of the suction port of the gap nozzle 80. A frictional force inserted between the side surfaces of the locking projections 53 in the width direction (a direction perpendicular to the paper surface) and the side wall inner surface of the suction port also acts as a locking force.

  Next, the gap nozzle 80 is slid so that the projections 86, 86 of the engagement arms 81, 81 are moved to the other end side of the guide grooves 57, 57. The locking is released (FIG. 5B).

  Here, the gap nozzle 80 is rotated clockwise around the axis connecting both the protrusions 86 and 86 (FIG. 6A), and the center line of the gap nozzle 80 and the center line of the hand operating section 50 are made to coincide (same as above). (B)), the gap nozzle 80 is slid so as to move the projections 86, 86 to one end side of the guide grooves 57, 57, so that the pipe portion 80a of the gap nozzle 80 becomes the pipe portion of the gap nozzle 50. 52 (FIG. 6C), the gap nozzle 80 is in a use state in which the gap nozzle 80 is fitted and connected to the hand operation unit 50.

  The above-described explanation is the transition action from the support locking state to the use state, but the transition action from the use state to the support locking state is performed by inverting the above-described action in time series.

  As described above, in the vacuum cleaner 10 according to the above-described embodiment, the protrusions 86 and 86 are slidable along the guide grooves 57 and 57, that is, along the axial direction of the tube portion 52 of the hand operating portion 50. The gap nozzle 80 can be slid with respect to the hand operating section 50 in the same manner as in the prior art, and the axis around the axis connecting the two protrusions 86 and 86 with the protrusions 86 and 86 entering the guide grooves 57 and 57. In addition, the gap nozzle 80 can be rotated with respect to the hand operation unit 50 in the same manner as in the conventional art. Therefore, the same usability as in the conventional case can be ensured.

  Here, since the guide grooves 57 and 57 are surrounded by the side walls that are higher than the distance d8 between the tips of the protrusions 86 and 86 (d6, d4> d8) over the entire length, the protrusions 86 and 86 are guided. Therefore, the gap nozzle 80 can be prevented from being inadvertently dropped from the hand operating section 50.

  Note that a load for elastic deformation is applied to both the engagement arms 81 and 81 so as to widen the distance d9 between the both engagement arms 81 and 81 (in the direction indicated by the thick black arrow in FIG. 4C). By doing so, the distance d8 between the tips of the projections 86, 86 formed on the engaging arms 81, 81 can be made larger than the distance d4 between the upper edges of the side walls of the guide grooves 57, 57. The projection 86, 86 can be pulled out from the guide grooves 57, 57, and the gap nozzle 80 can be attached to and detached from the hand operation unit 50.

  Here, although both the engagement arms 81 and 81 are connected by the connecting plate 84 at the base portion, the protrusions 86 and 86 are formed at positions far from the portion connected by the connecting plate 84. A large amount of bending due to the elastic deformation of the engaging arms 81, 81 can be ensured.

  Further, notches 58 and 58 are formed in a part of the side walls forming the guide grooves 57 and 57, and the height from the bottom surface of the guide grooves 57 and 57 to the edge of the notches 58 and 58 (= (d6 −d5) / 2) is lower than the height from the bottom surface of the guide groove 57 to the edge in the thickness direction of the support leg (= (d4−d5) / 2). In the operation of attaching and detaching, the projections 86 and 86 of the engagement arms 81 and 81 are elastically deformed so that the notches 58 and 58 pass through the notches 58 and 58, whereby the guide grooves 57 and 57 are formed. The amount of deformation can be suppressed to be smaller than the amount of elastic deformation required to get over the contour edge, and the labor for attaching / detaching the clearance nozzle 80 to / from the hand operation unit 50 can be reduced.

  Further, the notches 58 and 58 are formed with a step and a step so that the contour edge thereof is higher than the bottom surface of the guide grooves 57 and 57, so that the engaging arms 81 and 81 are elastically deformed. Therefore, the projections 86 and 86 do not pass through the notches 58 and 58, so that the gap nozzle 80 does not accidentally fall off from the hand operating unit 50.

  Moreover, since the notches 58 and 58 are formed in the substantially center part regarding the longitudinal direction of the guide grooves 57 and 57, the vacuum cleaner 10 of this embodiment performs locking operation with the one end part side which performs connection operation. The distance from the other end side is further reduced, further reducing the possibility of preventing the gap nozzle 80 from falling off.

  That is, the length between both ends in the longitudinal direction of the guide grooves 57 and 57 defines the sliding stroke of the engagement arms 81 and 81, but from the state where the gap nozzle 80 is locked to the hand operation unit 50. In the operation of coupling, or in the operation of locking the gap nozzle 80 from the state of being coupled to the hand operation unit 50, the engagement arms 81 and 81 slide over substantially the entire length of this stroke. The single operation of sliding has a meaning as a moving means of the engaging arms 81 and 81 for switching between the two states, so that the engaging arms 81 and 81 are not stopped at substantially the center of the stroke.

  That is, in order to stop the engagement arms 81 and 81 at the approximate center of the stroke, it is necessary to operate with an active intention of stopping at the approximate center.

  In this respect, the notches 58 and 58 for pulling out the protrusions 86 and 86 of the engaging arms 81 and 81 from the guide grooves 57 and 57 are formed at the approximate center of the stroke. The gap nozzle 80 does not fall off from the hand operating portion 50 simply by performing a coupling operation or a locking operation unless an operation intended to pull out the protrusions 86, 86 from the guide grooves 57, 57 is performed.

  Therefore, it is possible to further reduce the possibility of causing the gap nozzle 80 to drop due to a connecting operation or a locking operation that is not intended to remove or install the gap nozzle 80.

  Further, the notch 58 formed in the guide groove 57 is formed to extend in a direction different from the direction in which the protrusion 86 engages and slides on the guide groove 57, so that only by sliding of the protrusion 86, The protrusion 86 can be prevented from being carelessly detached from the guide groove 57.

  In the vacuum cleaner 10 according to this embodiment, the two guide grooves 57 and 57 formed on the support leg 54 both have a bottom surface. However, the two guide grooves 57 and 57 include two guide grooves 57 and 57. Since the protrusions 86 and 86 of the engagement arms 81 and 81 are formed corresponding to the protrusions 86 and 86, respectively, and are formed in parallel so as to share the bottom, the bottom is removed and the two guide grooves 57, 57 may be formed as a single long hole penetrating each other.

  Further, the portion where the support leg 54 is provided, that is, the portion where the gap nozzle 80 is supported and locked is not limited to the hand operating portion 50 as in the above-described embodiment. For example, the extension tube 40 (the extension tube in this case) Is an extension tube as a connected part), or in a handy type cleaner, it may be provided in a main body part (as a connected part) of the cleaner.

  Further, as the suction port body, in addition to the gap nozzle which is the above-described replacement suction port body, a floor suction port body, an attached brush having brush hairs, or the like can also be applied. The gap nozzle may also have brush hairs.

1 is a schematic external perspective view showing an electric vacuum cleaner according to an embodiment of the present invention. It is a schematic side view which shows the state by which the clearance nozzle was supported and latched by the hand operation part of the vacuum cleaner shown in FIG. 1, and the state connected. (A) is a principal part perspective view which shows a hand operation part, (b) is a principal part perspective view which shows a clearance gap nozzle. It is a figure explaining the detailed structure of the support locking of a hand operation part and a clearance nozzle, (a) is a side view of the support leg of a hand operation part, (b) followed the AA line in (a). Sectional drawing which shows a cross section, (c) is a top view which shows the bending shape of the engagement arm of a clearance nozzle. It is principal part sectional drawing (the 1) which shows the transition from a support latching state to a connection state (use state). It is principal part sectional drawing (the 2) which shows the transfer from a support latching state to a connection state (use state). It is a schematic side view which shows the state by which the clearance nozzle was supported and latched by the hand operation part of the conventional vacuum cleaner, and the state connected. (A) is a principal part perspective view which shows a hand operation part, (b) is a principal part perspective view which shows a clearance gap nozzle. It is a figure explaining the detailed structure of the support locking of a hand operation part and a clearance nozzle, (a) is a side view of the support leg of a hand operation part, (b) followed the AA line in (a). Sectional drawing which shows a cross section, (c) is a top view which shows the bending shape of the engagement arm of a clearance nozzle.

Explanation of symbols

10 Vacuum cleaner 40 Extension pipe (connection pipe)
50 Hand control (connected part)
54 Support leg 57 Guide groove 58 Notch 80 Clearance nozzle (suction port)
81 Engagement arm 86 Projection

Claims (3)

A support leg that protrudes from the outer peripheral surface of the connected portion to which the connecting pipe that sucks dust is connected, and an engagement arm that protrudes from the outer peripheral surface of the suction port connected to the connected portion are engaged with each other, In the vacuum cleaner in which the suction port body is supported so as to slide and rotate with respect to the connected part,
The engagement arm is composed of two engagement arms extending substantially parallel to each other, and each of the two engagement arms is formed with a protrusion protruding in a direction in which both engagement arms face each other.
The guide leg is formed with two guide grooves that engage with the projections of the engagement arms, and the projections are formed at substantially the center of the guide groove in the longitudinal direction of the side walls forming the guide grooves. A vacuum cleaner characterized in that a notch for attaching and detaching the guide to and from the guide groove is formed.   The vacuum cleaner according to claim 1, wherein the notch is formed to extend in a direction different from a direction in which the protrusion slides in engagement with the guide groove.   The vacuum cleaner according to claim 2, wherein the notch is formed so that a contour edge thereof is positioned lower than an upper edge of the side wall.

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